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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Same as
Higher
Lower
None of these

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

work
energy
momentum
mass

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Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

between 2000 and 4000
less than 2000
less than 4000
more than 4000

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When the metacentre is above e.g.
When its e.g. is below its center of buoyancy
Metacentre has nothing to do with position of e.g. for determining stability
When its meatcentric height is zero

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

Less than three times
Less than twice
More than three times
More than twice

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Trapezoidal
Rectangular
Circular
Square

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